Features: [Professional Wireless Microphone] High sensitivity condenser microphone Features 25 channels, volume adjustment, unidirectional pickup pattern for accurate sound recording. [Noise Cancellation] Adopting noise reduction technology, transmitter prevents noise interference, delivers stable audio signal transmission in 20 meters long distance, for clarity sound quality. [Strong Compatibility] Equipped with 1/8 inch TRRS connectors, receiver can plug direct to smartphones with 3.5mm jack. And it comes with a 3.5mm TRS converter, available to connect camera. [Built-in Rechargeable Battery] Transmitter & receiver each have high capacity batteries inside that are conveniently charged by power bank, laptop, etc. via 2-end USB cable, supports 6h long working time. [Wide Application] Lavalier mic with rugged metal clip is suitable for a variety of scene, like meeting, online teaching, video recording, interview and more. Specifications: Material: Plastic Color: Black Polar Pattern: Unidirectional Connector Type: 3.5mm Jack Channels: 25 Operating Range: 20 Meters(65 Feet) Battery Capacity: 400mAh Battery Life: 6h Transmitter Weight: 32g / 1.12oz Receiver Weight: 22g / 0.77oz Package Size: 20.5*11*5cm / 8.07*4.33*1.96in Package Weight: 149g / 5.25oz Note: Lavalier microphone system only, other accessories in the pictures are not included. All data is just for reference only, please refer to actual product. Due to manual measurement, there may be deviation, please in kind prevail. Due to lighting or other reasons, the picture and material object may slightly differ. Packing List: 1 * Transmitter with Mic 1 * Receiver 1 * USB Cable 1 * Carrying Bag 1 * 3.5mm TRRS to 3.5mm TRS Converter